Answer
a)Graph: See image below
b) Compressed by a factor of 3.
Work Step by Step
a) See image above.
b) The graph of $3(2^{x})$ is compressed by a factor of 3 when compared to the graph to $2^{x}$. All other features of the graphs are the same as shown by the graphs above (i.e same shape, domain, range, etc).